Leyline of Lifeforce
Counter-magic was the wall every creature-based strategy ran into, and this is the card built to dismantle it: a permanent blanket that switches off every Counterspell, Mana Leak, and Force of Will aimed at a creature for the rest of the game. The Leyline framing is what makes it viable as a hate piece. Drawn in your opening hand, it lands before turn one, ahead of any window the opponent has to interact, which is exactly the position an anti-counterspell tool needs to occupy. Hardcast off the top of your deck, it is a four-mana enchantment that provides no board presence, so the free-start clause is shouldering all the load; this belongs in play before the first land drop, not pulled into a developed game. The protection is symmetrical: creature spells can't be countered for either player, so it does not discriminate between your threats and theirs. That barely matters in practice, because the deck running it is the one stacking the board with creatures, while the opponent it punishes is the one holding the counters this turns off. What it leaves untouched is the rest of the answer suite: removal, discard, bounce, and sweepers all still function. The result is a scalpel for one specific axis rather than a general shield, a card that bricks against decks without counters and approaches a lock against the decks it was printed to punish.
